<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="讲师" prop="teacherName">
        <el-input v-model="queryParams.teacherName" placeholder="请输入" clearable size="small"
          @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd">新增</el-button>
      </el-col>

      <!-- <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar> -->
    </el-row>

    <el-table v-loading="loading" :data="teacherList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" align="center" type="index" width="100" />
      <el-table-column label="讲师" align="center" prop="teacherName" :show-overflow-tooltip="true" />
      <el-table-column label="简介" align="center" prop="teacherIntroduction" :show-overflow-tooltip="true" />

      <el-table-column label="头像">
        <template slot-scope="{row}">
          <el-image v-show="row.teacherPicture" style="width: 60px; height: 60px" :src="row.teacherPicture"
            :preview-src-list="[row.teacherPicture]">
          </el-image>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="90px" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="queryParams.current" :limit.sync="queryParams.size"
      @pagination="getList" />
    <!-- 添加或修改公告对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="780px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">

        <el-row>
          <el-col :span="12">
            <el-form-item label="讲师名称" prop="teacherName">
              <el-input v-model="form.teacherName"></el-input>
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="头像" prop="teacherPicture">
          <imageUpload v-model="form.teacherPicture" />
        </el-form-item>
        <el-form-item label="简介" prop="teacherIntroduction">
          <el-input type="textarea" :rows="2" placeholder="请输入内容" v-model="form.teacherIntroduction">
          </el-input>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
import ImageUpload from '@/components/ImageUpload';
import { getPage, getObj, delObj, addObj, putObj } from "@/api/courseTeacher";

export default {
  name: "Notice",
  components: { ImageUpload },
  data () {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 讲师数据
      teacherList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 类型数据字典
      statusOptions: [],
      // 状态数据字典
      typeOptions: [],
      // 查询参数
      queryParams: {
        current: 1,
        size: 10,
        teacherName: undefined
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        teacherName: [{ required: true, message: "姓名不能为空", trigger: "blur" }],
        teacherPicture: [{ required: true, message: "图片不能为空", trigger: "blur" }],
      }
    };
  },
  created () {
    var userInfo = sessionStorage.getItem('userInfo') || ''
    if(userInfo == ''){
      this.$router.push('/login')
      return
    }
    this.getList();
  },
  methods: {
    /** 查询公告列表 */
    getList () {
      this.loading = true;
      getPage(this.queryParams).then(response => {
        this.teacherList = response.data.records
        this.total = response.data.total;
        this.loading = false;
        console.log(this.teacherList)
      });
    },
    // 取消按钮
    cancel () {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset () {
      this.form = {
        Id: undefined,
        categoryTitle: undefined,
        categoryType: undefined,
        categoryContent: undefined,
        status: "0"
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery () {
      this.queryParams.current = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery () {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange (selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length != 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd () {
      this.reset();
      this.open = true;
      this.title = "添加讲师";
    },
    /** 修改按钮操作 */
    handleUpdate (row) {
      this.reset();
      const id = row.id || this.ids
      getObj(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改讲师";
      });
    },
    /** 提交按钮 */
    submitForm: function () {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != undefined) {
            putObj(this.form).then(response => {
              this.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addObj(this.form).then(response => {
              this.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete (row) {
      const noticeIds = row.id || this.ids
      this.$confirm('是否确认"' + row.teacherName + '"的数据项?', "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      }).then(function () {
        return delObj(noticeIds);
      }).then(() => {
        this.getList();
        this.msgSuccess("删除成功");
      })
    }
  }
};
</script>